Home / 3,189.32-4,402.50-2,490.92

Finding the Fourth Proportional to 3,189.32, 4,402.50 and 2,490.92

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Solution

The fourth proportional to 3,189.32, 4,402.50 and 2,490.92 is: 3,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.32 : 4,402.50 = 2,490.92 : x
  2. Step 2: Convert to fraction form
    3,189.32/4,402.50 = 2,490.92/x
  3. Step 3: Cross multiply
    3,189.32x = 4,402.50 × 2,490.92
  4. Step 4: Simplify right side
    3,189.32x = 10,966,275.30
  5. Step 5: Solve for x
    x = 10,966,275.30/3,189.32
  6. Step 6: Final answer
    x = 3,438.44

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.